Unformatted text preview: carbons
lowest Combustion of Hydrocarbons
Combustion of hydrocarbons is exothermic generating
CO2 and water.
CO Combustion of Relative Stability
All isomers of C8H18 generate 8 molecules of CO2 and 9
of H2O yet different amounts of energy. This energy
difference must be directly related to the relative energies
of the isomers.
released Oxidation and Reduction in Organic Chemistry
Assuming the oxidation state of H is +1 and O is -2 it is
possible to calculate the oxidation state of C in
compounds containing C, H and O.
compounds Oxidation and Reduction in Organic Chemistry
Oxidation of carbon corresponds to an increase in the
number of bonds between carbon and oxygen or to a
decrease in the number of carbon–hydrogen bonds.
Reduction corresponds to an increase in the number of
carbon–hydrogen bonds or to a decrease in the number
of carbon–oxygen bonds.
of Oxidation and Reduction in Organic Chemistry
Any element more electronegative than C has the same
effect as O on the oxidation state of C.
Oxidation state of C is +2 in CH3Cl and CH3OH.
Any element less electronegative than C has the same
effect as H on the oxidation state of C.
Oxidation state of C is -4 in CH4 and CH3Li....
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- Fall '08
- Highly Branched Alkanes